rs770377384

Positions:

chr1-15727627-G-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_015164.4(PLEKHM2):c.1555G>T(p.Asp519Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000251 in 1,590,768 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D519V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

PLEKHM2
NM_015164.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.40

Variant links:

Genes affected

PLEKHM2 (HGNC:29131): (pleckstrin homology and RUN domain containing M2) This gene encodes a protein that binds the plus-end directed microtubule motor protein kinesin, together with the lysosomal GTPase Arl8, and is required for lysosomes to distribute away from the microtubule-organizing center. The encoded protein belongs to the multisubunit BLOC-one-related complex that regulates lysosome positioning. It binds a Salmonella effector protein called Salmonella induced filament A and is a critical host determinant in Salmonella pathogenesis. It has a domain architecture consisting of an N-terminal RPIP8, UNC-14, and NESCA (RUN) domain that binds kinesin-1 as well as the lysosomal GTPase Arl8, and a C-terminal pleckstrin homology domain that binds the Salmonella induced filament A effector protein. Naturally occurring mutations in this gene lead to abnormal localization of lysosomes, impaired autophagy flux and are associated with recessive dilated cardiomyopathy and left ventricular noncompaction. [provided by RefSeq, Feb 2017]

PLEKHM2 links:

ENSG00000237938 (HGNC:):

ENSG00000237938 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.057945997).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PLEKHM2	NM_015164.4 linkuse as main transcript	c.1555G>T	p.Asp519Tyr	missense_variant	9/20	ENST00000375799.8	NP_055979.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PLEKHM2	ENST00000375799.8 linkuse as main transcript	c.1555G>T	p.Asp519Tyr	missense_variant	9/20	1	NM_015164.4	ENSP00000364956.3		Q8IWE5-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

151936

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000949

AC:

AN:

210734

Hom.:

AF XY:

0.00

AC XY:

AN XY:

114116

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000656

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000108

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.95e-7

AC:

AN:

1438832

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

713526

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000259

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

151936

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74204

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ExAC

AF:

0.00000830

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 19, 2024

The c.1555G>T (p.D519Y) alteration is located in exon 9 (coding exon 9) of the PLEKHM2 gene. This alteration results from a G to T substitution at nucleotide position 1555, causing the aspartic acid (D) at amino acid position 519 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Dilated Cardiomyopathy, Recessive

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 05, 2020

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with PLEKHM2-related disease. This variant is present in population databases (rs770377384, ExAC 0.005%). This sequence change replaces aspartic acid with tyrosine at codon 519 of the PLEKHM2 protein (p.Asp519Tyr). The aspartic acid residue is moderately conserved and there is a large physicochemical difference between aspartic acid and tyrosine. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.51

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.022

T;.;.

Eigen

Benign

-0.58

Eigen_PC

Benign

-0.55

FATHMM_MKL

Benign

0.51

LIST_S2

Benign

0.78

T;T;T

M_CAP

Benign

0.020

MetaRNN

Benign

0.058

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.7

L;.;.

PrimateAI

Benign

0.33

PROVEAN

Benign

-2.1

N;N;.

REVEL

Benign

0.027

Sift

Uncertain

0.0040

D;D;.

Sift4G

Uncertain

0.034

D;D;.

Polyphen

0.41

B;.;.

Vest4

0.27

MutPred

0.23

Gain of phosphorylation at D519 (P = 0.0247);.;.;

MVP

0.28

MPC

0.23

ClinPred

0.080

GERP RS

2.3

RBP_binding_hub_radar

1.1

RBP_regulation_power_radar

2.2

Varity_R

0.070

gMVP

0.23

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over